comprobar.

to check, to check on, to check out, to see, to check to see (examine)

Me olvidé de comprobar si la hora de salida de su vuelo había cambiado o no.

to verify, to ascertain, to determine, to confirm

to test (the accuracy or effectiveness of something)

to prove, to establish (i.e. demonstrate the veracity of something)

to note (as in realizing)

to be checked, tested, to check out

to be found, determined